What is the difference between and orbit and an electron orbital?

An orbit is a specific path an electron follows around the nucleus of an atom. It is an obsolete idea that comes from the Bohr (bohring) model of hydrogen. A much more interesting model comes from quantum mechanics. It considers a region a space around the nucleus where there is a high probability of finding an electron if one goes looking for it. The region of space is called an orbital. By the way, what is interesting is as long as you are not looking for the electron, it behaves like a wave and occupies the entire orbital just as a sound wave occupies an entire room. When you find it (it makes a flash on a screen), that wave collapses into a particle. What is crazy is that the electron knows whether you are looking for it!